The photos clearly pay homage to Marilyn Monroe and her vintage Playboy pictorial. Lohan, donning little more than red lipstick (and, in one pic, a fur shrug), poses nude in front of a red curtain. The actress was photographed in soft light as she poses on red couches and bedding, in various sexy positions.

The photos were shot in November in Los Angeles, in between Lohan's court dates and legal issues. In an interview with "The Insider," mom Dina said the pictorial would be "tastefully done." "She's been working in front of the camera with Ford Models since she was a little girl," she added. "So she kinda knows how to work that."

A rep for Playboy addressed the latest leak to MTV News in a statement: "Someone took photos of Lindsay's pictorial in an advanced copy of the January/February issue. They posted the photos online without permission. We are not releasing any official images or information until December 15."

Lohan is set to do an interview with Ellen DeGeneres on her December 15 talk show to about the pictorial. It was originally planned that the cover and an additional image would debut on the show.

A source told TMZ that Playboy execs are "freaking out" about the leak. The magazine is slated to hit newsstands next week, and the magazine allegedly printed thousands of extra copies. They fear the leak could hurt sales and they had been banking on the fact that this would be the mag's best-seller of the year. The actress was reportedly paid nearly $1 million for the shoot.